package jwdt.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

public class FileCopyUtils {

	/** 
     * copyFile 
     * @param oldPath
     * @param newPath
     * @return boolean 
     */ 
	public static void copyFile(String oldPath, String newPath) { 
       try { 
           int bytesum = 0; 
           int byteread = 0; 
           File oldfile = new File(oldPath); 
           if (oldfile.exists()) {  
               InputStream inStream = new FileInputStream(oldPath);  
               FileOutputStream fs = new FileOutputStream(newPath); 
               byte[] buffer = new byte[1024]; 
               int length; 
               while((byteread = inStream.read(buffer)) != -1) { 
                   bytesum += byteread;  
                   fs.write(buffer, 0, byteread); 
               } 
               inStream.close(); 
           } 
       } 
       catch (Exception e) { 
           e.printStackTrace(); 
       } 
   } 

   /** 
     * copyFolder 
     * @param oldPath
     * @param newPath 
     * @return boolean 
     */ 
   public static void copyFolder(String oldPath, String newPath) {
       try { 
           (new File(newPath)).mkdirs(); 
           File a=new File(oldPath); 
           String[] file=a.list(); 
           File temp=null; 
           for (int i = 0; i < file.length; i++) { 
               if(oldPath.endsWith(File.separator)){ 
                   temp=new File(oldPath+file[i]); 
               } 
               else{ 
                   temp=new File(oldPath+File.separator+file[i]); 
               } 

               if(temp.isFile()){ 
                   FileInputStream input = new FileInputStream(temp); 
                   FileOutputStream output = new FileOutputStream(newPath + "/" + (temp.getName()).toString()); 
                   byte[] b = new byte[1024 * 5]; 
                   int len; 
                   while((len = input.read(b)) != -1) { 
                       output.write(b, 0, len); 
                   } 
                   output.flush(); 
                   output.close(); 
                   input.close(); 
               } 
               if(temp.isDirectory()){            	   
                   copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]); 
               } 
           } 
       } 
       catch (Exception e) { 
           e.printStackTrace(); 
       } 
   }
}
